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Description
📘 Overview
The Blue Diamond Cast Head Auger Bits are heavy-duty cast head auger bits skid steer operators use to bore holes in tougher and mixed soils. Each bit mounts to a 2″ hex auger-drive interface that fits standard auger drives, and this listing offers diameters from 6″ all the way to 48″ — the widest range in the Blue Diamond auger bit line — for large footings, piers, and demanding post work.
This listing covers the cast-head auger bits in fifteen diameters, from a 6″ bit (#105205) up to a 48″ bit (#105250). The cast head provides a robust, precisely-formed tooth arrangement that stands up to harder digging, and the teeth are replaceable through Blue Diamond's dirt, hard-face, and carbide cast-head tooth kits.
As cast head auger bits skid steer machines drive, they dig tough and mixed ground. Blue diamond cast head auger bits reach up to 48″ for large holes; these heavy duty auger bits cast head are built for demanding work. For clay auger bits skid steer operators need, the cast head plus a hard-face or carbide tooth kit cuts sticky, compacted clay and mixed soils.
The 6″–48″ diameter range, 2″ hex drive, robust cast-head construction, and replaceable cast-head tooth kits make these the heavy-hitters of the auger bit line.
⚙ Cast Head Auger Bit Features
- Diameters from 6″ to 48″ — widest range offered
- 2″ hex drive fits standard auger drives
- Robust cast-head construction
- Precisely-formed tooth arrangement for tougher soil
- Replaceable dirt, hard-face, and carbide cast-head tooth kits
- A 15″ bit is also available with a 2 9/16″ round shaft
🔑 Why Choose the Blue Diamond Cast Head Auger Bits
- Widest diameter range — from 6″ to 48″, these reach larger diameters than the fab-head heavy-duty bits, for big footings and piers.
- Built for tougher ground — the cast head's robust, precise tooth arrangement handles harder and mixed soils better than a fabricated head.
- Cuts clay and compacted soil — paired with a hard-face or carbide cast-head tooth kit, they bore sticky clay and compacted ground.
- Standard 2″ hex drive — fits Blue Diamond and other common auger drives, so they work with the drive you already run.
- Replaceable teeth — cast-head dirt, hard-face, and carbide tooth kits refresh the cutting edges, extending bit life in abrasive ground.
🔄 Cast Head Auger Bits Skid Steer Variant Specifications
| Part Number | Diameter | Weight |
|---|---|---|
| 105205 | 6” DIAMETER, CAST HEAD | 45 lbs |
| 105208 | 8” DIAMETER, CAST HEAD | 90 lbs |
| 105210 | 9” DIAMETER, CAST HEAD | 98 lbs |
| 105215 | 10” DIAMETER, CAST HEAD | 113 lbs |
| 105220 | 12” DIAMETER, CAST HEAD | 128 lbs |
| 105225 | 15” DIAMETER, CAST HEAD | 139 lbs |
| 105226 | 15” DIAMETER, CAST HEAD (2 9/16" round) | 139 lbs |
| 105230 | 16” DIAMETER, CAST HEAD | 167 lbs |
| 105235 | 18” DIAMETER, CAST HEAD | 204 lbs |
| 105237 | 20” DIAMETER, CAST HEAD | 231 lbs |
| 105239 | 24” DIAMETER, CAST HEAD | 272 lbs |
| 105241 | 30” DIAMETER, CAST HEAD | 312 lbs |
| 105243 | 36” DIAMETER, CAST HEAD | 430 lbs |
| 105245 | 42” DIAMETER, CAST HEAD | 460 lbs |
| 105250 | 48” DIAMETER, CAST HEAD | 550 lbs |
🔗 Attachment Compatibility
These cast-head bits fit any auger drive with a matching 2″ hex output shaft (a 15″ option ships with a 2 9/16″ round shaft). Cast-head dirt, hard-face, and carbide tooth kits bolt onto the bit heads and are sold separately as wear parts.
🚜 Machine Compatibility
Drives Blue Diamond and compatible auger bits via a 2″ hex output shaft. Mounts to skid steers, mini skid steers, and excavators equipped with the matching carrier:
Skid Steer Universal QA
Mini Quick-Attach
Excavator Coupler
2″ Hex Bit Drive
Compatibility is determined by mount type and hydraulic flow, not brand — confirm your machine's mount and flow before ordering. Not sure it fits your machine? Contact eskidsteer.com at (866) 757-8337.
❓ Frequently Asked Questions
Q: How are cast-head bits different from the heavy-duty (fab head) bits?
Cast-head bits use a cast head casting that gives a robust, precisely-formed tooth arrangement for tougher and mixed soils, and they're offered in larger diameters up to 48″. The heavy-duty fab-head bits use a welded head suited to normal soil at a lower cost. Choose cast-head for harder ground or when you need diameters above 36″.
Q: What's the largest hole these can dig?
This listing goes up to a 48″ diameter (#105250) — the largest in the Blue Diamond auger bit line. Large-diameter bits require a high-torque auger drive and a capable machine, so confirm your drive can handle the size before ordering.
Q: Are cast-head bits good for clay?
Yes — the cast head paired with a hard-face or carbide cast-head tooth kit is well suited to sticky clay and compacted, mixed soils. The robust tooth arrangement and durable teeth cut ground that would wear standard dirt teeth quickly.
Q: Can I replace the teeth?
Yes — Blue Diamond offers dirt, hard-face, and carbide tooth kits made specifically for the cast-head bits. As teeth wear, you fit a fresh kit rather than replacing the bit. Hard-face and carbide kits last longer in abrasive and rocky ground.
Q: How is shipping calculated?
Shipping is calculated at checkout — add the item to your cart, enter your delivery address, and the shipping charge is displayed before you complete your order. Lift gate service is available for residential deliveries and can be selected at checkout.
Q: How do I order?
Add the item to your cart directly on eskidsteer.com and complete checkout online. Have your auger drive's shaft size and torque rating ready to confirm fitment before ordering. If you have a fitment question before purchasing, call us at (866) 757-8337.
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